SystemDateTimeValidation Class

Facilitates validating the date/time of the current system against Internet time servers (via Simple Network Time Protocol, or SNTP).

Inheritance Hierarchy

SystemObject
com.softwarekey.Client.LicensingSystemValidation
com.softwarekey.Client.LicensingSystemDateTimeValidation

Namespace: com.softwarekey.Client.Licensing
Assembly: PLUSManaged (in PLUSManaged.dll) Version: 5.23.4.0

Syntax

C++

Copy

public class SystemDateTimeValidation : SystemValidation

Public Class SystemDateTimeValidation
	Inherits SystemValidation

public ref class SystemDateTimeValidation : public SystemValidation

The SystemDateTimeValidation type exposes the following members.

Constructors

	Name	Description
	SystemDateTimeValidation	Creates a new SystemDateTimeValidation object which requires successful validation with an Internet time server (requires Internet connectivity). The AddTimeServerCheck(String) method will need to be called at least once to allow validation to occur.
	SystemDateTimeValidation(Boolean)	Creates a new SystemDateTimeValidation object. The AddTimeServerCheck(String) method will need to be called at least once to allow validation to occur.
	SystemDateTimeValidation(Boolean, Double)	Creates a new SystemDateTimeValidation object. The AddTimeServerCheck(String) method will need to be called at least once to allow validation to occur.

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Properties

	Name	Description
	AllowedVariation	Gets or sets the amount of time (in minutes) of acceptable variation between the current system's date/time versus the Internet time server's date/time. (5.0 by default)
	LastError	Gets or sets the last error encountered in this object. (Inherited from SystemValidation.)
	ValidationRequired	Gets or sets whether or not validation with an Internet time server is required. Internet connectivity is required if true. (True by default)

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Methods

	Name	Description
	AddTimeServerCheck(String)	Adds an SNTP server to the list of servers to check.
	AddTimeServerCheck(String, Int32)	Add an SNTP server to the list of servers to check.
	AddTimeServerCheck(String, Int32, Int32, Int32)	Add an SNTP server to the list of servers to check.
	Equals	Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
	Finalize	Allows an Object to attempt to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.)
	GetHashCode	Serves as a hash function for a particular type. (Inherited from Object.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	ToString	Returns a String that represents the current Object. (Inherited from Object.)
	Validate	Validates the current system's Date/Time against that of Internet time servers. (Overrides SystemValidationValidate.)

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Remarks

Caution
This class allows you to verify a system's time has not be altered by comparing it to the time on a specified Internet time server. Sometimes, the availability of time servers may be somewhat unreliable (which is why this class allows you to specify multiple servers as fallbacks), and it is common for SNTP requests to be blocked by firewalls and proxy servers. Additionally, although it is technically possible to perform SNTP requests against public NTP servers in your application, we strongly recommend you get approval from the time server's administrators/owners first (as this could cause unexpected load on their time servers, which could cause problems for you and everyone else who might rely on them).

Caution

This class allows you to verify a system's time has not be altered by comparing it to the time on a specified Internet time server. Sometimes, the availability of time servers may be somewhat unreliable (which is why this class allows you to specify multiple servers as fallbacks), and it is common for SNTP requests to be blocked by firewalls and proxy servers.

Additionally, although it is technically possible to perform SNTP requests against public NTP servers in your application, we strongly recommend you get approval from the time server's administrators/owners first (as this could cause unexpected load on their time servers, which could cause problems for you and everyone else who might rely on them).

Caution
The SystemDateTimeValidation class is not available in the .NET Standard PLUSManaged assembly.

Reference

com.softwarekey.Client.Licensing Namespace